<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>生成九九乘法表</title>
    <script>
        var str = '';
        for(var i = 1; i <= 9; i++){
            for(var j = 1;j <= i; j++){
                str += j + 'x' + i + '=' + i *j + '\t';
            }
            str += '\n';
        }
        console.log(str);
    </script>
</head>
<body>

</body>
</html>